By noon, the stock had climbed 3.1% to $75.22. Trading volume of 2.9 million had nearly exceeded its three-month daily average of 3.2 million.
The Shanghai-based firm, which owns Sina.com and Weibo, is due to report its fourth quarter and full year after the bell.
Management previously said it expects net revenue for its December-ended fourth quarter between $190 million and $194 million, including advertising revenue of $160 million to $162 million. Revenues will exclude the recognition of $4.7 million in deferred license revenues related to the company'sequity investment in E-House/CRIC.
Analysts surveyed by Thomson Reutersanticipate quarterly net income of 46 cents a share on $191.84 million in revenue.
For the full year, consensus is for per-share earnings of $1.13 and $646.22 million in sales.
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TheStreet Ratings team rates SINA CORP as a Hold with a ratings score of C. The team has this to say about their recommendation:
"We rate SINA CORP (SINA) a HOLD. The primary factors that have impacted our rating are mixed -- some indicating strength, some showing weaknesses, with little evidence to justify the expectation of either a positive or negative performance for this stock relative to most other stocks. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures and growth in earnings per share. However, as a counter to these strengths, we find that the company's return on equity has been disappointing."